Dayle1 wrote:
Weight the truck, fully loaded, by axle. Subtract the actual rear axle weight from the rear GAWR. Then you will know what your available load capacity is. Most likely you will be around 3000 lbs and with a rear GAWR of 6084 lbs, you have about 3k available. However you will be over the truck's GVWR. I don't know what Ca law is, but in some states you can license the vehicle for a GVWR higher than the manufacturer's stated GVWR and your truck is out of warranty.
Unless the fiver floor plan is a rear kitchen, it is unlikely that you can load it to reduce pin weight. While dry pin weight may be around 15-17%, if you add 1500 lbs of cargo, 25% or more will show up as pin weight because so much storage is forward of the fiver axles.
My previous truck was a 2500HD diesel with a utility bed and 45 gal replacement tank. My fiver dry pin weight was 1800 lbs and loaded I was still under the rear GAWR.
Your other question cannot be answered realistically by anyone else, I can't even visualize the parking situation. Added length is only part of the issue, the other is distance from the truck's rear axle to the fiver axles. Generally, you can compensate for a longer rig by pulling further forward before backing. Maybe you could tape two wood sticks on the back of your current fiver and see how much impact the extra 2-1/2 ft makes.
I like the sticks idea. I'll give it a try the next time I have the receiver on the truck. Right now its in storage.
My pin weights were calculated using the actual raw with the aux tank full with and without the 5ver attached. Very little changes in our rig forward of the axles. The bins, and bedroom stuff is pretty much in there year round. A BIG variable is the nearly 500 lbs of water which is loaded in the rear of the rig when the tank is full. Big shifts. We don't like the weight but sometimes its necessary when dry camping.
Regards
Bill